Tkrtjck-i rame



E. E. SUCK.

TRUCK'FRAME.

APPLICATION FILED JUNE 20, 1916.

2 195 1 11, Patented Aug. 15, 1916.

INVENTOR ATTORNE. j

elastic limit or FIQ.

EDWIN E. SLICK, 0F WESTMON'I' BOROUGH, PENNSYLVANIA.

TRUCK-FRAME.

Specification of Letters Patent.

Patented Aug. 15, ieic.

Application filed June 20, 1916. Serial N 0. 104,661.

To all whom it may concern:

Be it known that I, EDWIN E. suck, a

citizen of the United States, residing in the borough of Westmont, in the county of Cambria and State of Pennsylvania, (whose post-office address is J ohnstown, Pennsylvania,) have invented certain new and useful Improvements in Truck-Frames; and I do hereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in truck frames with particular reference to those which are adapted to support heavy freight or other cars.

I provide a truck frame which may be made of rolled or otherwise wrought steel, which material can be of the quality and temper best adapted to suit the purposes intended and by reason of its method of manufacture, manipulation, testing and inspection, can be of known chemical and physical properties and of solidity throughout, thereby avoiding the possibility of incipient cracks or flaws which are common in other constructions of this character and particularly in cast steel frames.

Although my truck frame is built up of separate pieces, each of which is adapted to be rolled, pressed or formed into the desired shape prior to assembling, the number of pieces is quite small as compared with other constructions, which thus conduces to ease, and economy of manufacture and approximately unitary construction.

The strength and rigidity of my construction-is further accomplished by securing the parts together by cold driven rivets which are upset in -registering holes of the adjacent parts which are provided therefor, the heads of the rivets also being upset cold. By this method of construction I cause a plastic flow of thecold rivet exceeding its yield point, and I also cause it to fill the holes very tightly and solidly and to pinch the. parts together with tremendous pressures, and in doing this, the elastic limit and yield point of the rivets are increased in such a way that my stresses which may be applied to "them thereafter in service, due to loads or impacts of shocks, can have no appreciable affect upon them, if the stresses occasioned thereby are less than their increased elastic limits due to cold upsetting and heading. In this respect which project outwardly,

together, as these are easily col d driven rivets are much superior to hot driven ones, as the pressures required to drive and upset them are approximately twenty tlmes as great as those required for similar work on hot driven rivets. By this means I provide much strongerjoinders of the various parts, with the same amount of material, than can be had by hot driven rivets, bolts, etc.

I preferably construct the upper and lower arch-bar members, or what is known as the upper arch bar and the inverted arch bar, of U-shape or trough section, comprismg two webs, a flange portion integrally uniting the said webs and substantially at.

right angles thereto, the angles, however, being slightly greater then right angles to allow clearance'for rolling or pressing, and at the edges of the webs are other flanges thus forming ready and convenient means for attaching the parts together. I prefer to arrange the upper arch bar with its webs upright, with the single flange uniting the webs arranged at the upper part of the bar, with the outwardly projecting flanges arranged at the lower portion of the bar, and this upper arch bar may be either straight orv slightly rounded or cambered as desired. The lower or inverted arch bar is of similar section with its outwardly projecting flanges on its upper side and is spaced apart from the upper arch bar for a considerable distance at its intermediate portion and inclines upwardly.from each end of its lower portion in a diagonal manner the upper arch bar. The end portions of the lower arch bar are parallel to and secured to the ends of the upper arch bar, preferably by rivets which pass through their contiguous outstanding flanges.

Within the approximately triangular spaces between the upper and lower arch bars,I provide'diaphragms or pan-shaped members of the form of an open box with flanges on all the edges thereof, which diaphragms are secured to the upper andlower arch bars, preferably by rivets passing through their contiguous flanges. The outstanding flanges of these diaphragms and of the arch bars themselves, form a ready and convenient means for securing the parts accessible by or I difliculty whatsoever 1n assembling and riveting the parts. The diaphragms in question form the boundaries of the sides of the to the end portions of ary rivetingor tools and there' is no inverted arch bar, I

bolster opening, and to form a reinforcement and support for the springs, I provide a bent plate of U-form of the width of the bolster opening, the sides of which are secured to the flanges of the diaphragms, and the bottom of which is secured to the flanges of the lower arch bar by rivets. At the upper portions of each of the diaphrag' members surrounding the bolster opening, I provide a shallow U-shape member secured by its integral outstanding flanges to the flanges of the diaphragms, the other portion of this shallow U-shape member projecting inwardly and adapted to serve as a bolster guide. At or near the lower part of the secure a pedestal tie bar riveted thereto, the other end of which is secured to the journal box by the usual bolts. The lower arch bar is arranged with its web portions substantially vertical and with the flange connecting the Webs in a substantially horizontal position, the ends of this arch bar being also approximately horizontal so that the flange connecting the web portions provides a flat broad surface well adapted to rest upon and to be secured to the journal box by the usual journal box bolts.

One of the particular features of my construction is the combination and arrangement of the arch barsof U-section with outstanding flanges by means of which flanges the parts are secured together, and another feature resides in the use of the pan-shaped diaphragms secured by their flanges to the adjacent flanges of the arch bars.

Having thus given a general description of my invention, I will now refer to. the annexed sheet of drawings in which like characters refer to like parts.

Figurel is a side elevation of a railroad truck, embodying my truck frame; Fig. 2 is a vertical longitudinal sectional elevation of the truck frame; Fig. 3 is a top plan view of the truck frame; Fig. 4 is a vertical transverse sectional elevation taken on theline IV-IV of Fig. 2; and Fig. 5 is a horizontal sectional elevation taken on the line VV of Fig. 2, drawn on an enlarged scale to more clearly show the construction.

Referring now to the various characters of reference on the drawings :-1 represents my upper arch bar consisting of a trough section having two approximately parallel webs, an integral flange uniting the same and two outstanding flanges on the other edges of said webs, 2 is the lower or inverted arch bar of my truck frame which is com posed of a shape similar to the upper arch bar just described but reversed in location; 1 The lower part of my inverted arch bar, as illustrated, is spaced a considerable distance from the upper arch bar, this distance being suflicient to admit the bolster, springs and spring plates and allow room for the usual elastic movement of the bolster. From the lower part of my lower arch bar the portions 3 extend upwardly in an inclined or diagonal direction until its outstanding flanges contact with those of the upper arch bar, while the end portions of both of my arch bars extend substantially horizontal with their adjacent outstanding flanges in contact and secured together by rivets, the horizontal ends of my lower arch bar being illustrated as 4:. The outstanding flanges of my upper-arch bar are indicated as 5, while the corresponding flanges of the lower arch bar are indicated as 6, the journal boxes are indicated as 7, the panor box-shape diaphragms are indicated as 8, four of these diaphragms preferably being used, two being secured to the flanges of the arch bars on each side of the bolster opening, one on each side being secured to the flanges on one side of the arch bars and the other to the flanges on the other side of the arch bars, the flanges of these diaphragms being indicated as 9. Openings 10 and 11 are provided in the upper portion of the upper arch bar for the purpose of receiving the heads of the journal-box bolts, which bolts pass through holes 12 and 13 in the lower central flange of the lower arch bar, the bolts being indicated as 14 and 15 respectively, the lower ends of which project through registering openings in the pedestal tie bar 24, and are secured in place by the nuts as shown. Secured to the flanges of the diaphragms adjacent to the bolster opening and to the outstanding flanges of the lower arch bar is the U-shaped or bent plate 16, which is adapted to reinforce the structure and to provide a seat for the springs, and I may provide a spring plate 18 resting thereon if desired.

19 are spring plank angles attached, as shown, to the structure, these being for the purpose of squaring the truck and securing together the frames on either side of the truck. The usual helical, springs are indicated as 20, while 21 is a bolster which may be of any form provided with guides adapted to cooperate with the column guides 22, which column guides are each formed of a shallow trough-shaped plate, as illustrated, secured by means of its outstanding flanges to the flanges 9 ofthe diaphragms, the rivets on the inside being;preferably countersunk, thereby providing a smooth surface for guiding the bolster.

23 is a brake hanger carrier formed of a forging of the shape shown, which is inserted through registering holes in the webs of the diaphragms 8 and preferably riveted thereto as indicated. r

Although I have described and illustrated my invention in considerable detail, I do not 1 wish to be limited to the exact and specific details thereof, as shown and described, but

in y use such modifications in, substitutions for, or equivalents thereof, as are embraced within the scope of my invention, or as pointed out in the claims.

Having thus described my invention, what I claim and desire to secure by Letters Patent is 1. A truck frame comprising an upper arch bar and a lower arch bar, both of trough section with integral outstanding flanges spaced apart at their intermediate portions with their outstanding flanges contiguous at the end portions and secured together.

2. A truck frame comprising an upper arch bar and a lower arch bar, both of trough section with outstanding flanges, the outstanding flanges being adjacent and secured directly together at their end portions.

3. A truck arch bar comprising a trough section with flanges projecting outwardly from the lower portions thereof, a lower arch bar composed of a similar section with its outstanding fl anges at the upperportions thereof, the arch bars being spaced apart at their intermediate portions and with their end portions adjacent and secured directly together by means of their contiguous outstanding flanges.

4. A truck frame comprising an. upper arch bar comprising a trough section with flanges projecting outwardly from the lower portion thereof, a lower arch bar composed of a similar section with its outstanding flanges at the upper portion thereof, the arch bars being spaced apart at their intermediate portions with their ends adjacent and secured together by rivets passing through the contiguous outstanding flanges.

5. A truck frame comprising an upper arch bar of trough section with flanges projecting outwardly from its lower portion, a lower arch bar of similar section arranged with its flanges projecting outwardly from its upper portion, the flanges at the ends of both arch bars being contiguous and secured. together, the intermediate portions of the arch bars being spaced apart and provided on each side of the bolster opening with flanged diaphragms secured to arch-bar flanges.

(3-. A truck frame comprising an upper arch bar of inverted trough section with outwardly projecting flanges, a lower arch bar of similar section, the arch bars being spaced apart at their intermediate portions and contiguous and secured together atthe'" end portions, fat d l .5 of ap 3r mately triai C b. said arch ba the arch frame comprising an upper 7. A truclr frame comprising an upper arch bar and a lower arch bar of trough section with marginal flanges extending ou wardly and the end portions being secured together and adapted to rest on the tops of the journal boxes, the intermediate portions of the arch bars being spaced apart and reinforced by flanged diaphragms secured to their flanges.

8. r truck frame comprising an upper arch bar and a lower arch bar of trough section with outstanding flanges, the end portions being adjacent and secured together by means of said flanges, the central portions spaced apart, and reinforcing mem bers located in the angular spaces between said arch bars and secured by means of their flanges to the arch bars aforesaid.

9. In a truck frame of the character described, a pair of flanged diaphragms secured between the arch bars, their inner surfaces being adjacent to the bolster opening and. a shallow channel-sha e column guide secured to the upper portions of said diaphragms by means of its outstanding flanges.

10. A truck frame comprising an upper arch bar of channel section with marginal outwardly projecting flanges at the lower sides thereof, an inverted arch bar of similar section, the outstanding flanges being arranged at its upper side, the arch bars being joined together at their ends by means of said outstanding flanges and spaced apart at their intermediate portions, a pair of pan-shaped flanged diaphragms located on each side of the center of the frame and secured to the arch bars by their flanges, a reinforcing plate of Ushape, the sides of which are secured to saiddiaphragms and its bottom portion to the intermediate portion of the lower arch, thereby forming a reinl forcing member and a spring seat.

11. A. truclr f1 ame comprising an. upper arch bar of channel section with ma outwardly projecting flanges arrang the lower sides thereof, an inverted arch bar of similar section, the outstanding flanges being arranged at its upper sides, the arch bars joined together at their ends by means of said outstanding flanges, pair of flanged pan-shaped diaphragms located on each side of the center of the frame, form-- ing the sides of the bolster open' 1 and so cured to the arch bars by their flanges, a reinfi'ircing plate of ll-shape, the sides of which are secured to said diaphragms and to the in ermediate portion of the lower arch bar, ll-shape column guides secu d to the upper portion l diaphragms bymeans their 0.

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